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Finding the Fourth Proportional to 55,655.20, 83,482.80 and 14,102.20

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Solution

The fourth proportional to 55,655.20, 83,482.80 and 14,102.20 is: 21,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.20 : 83,482.80 = 14,102.20 : x
  2. Step 2: Convert to fraction form
    55,655.20/83,482.80 = 14,102.20/x
  3. Step 3: Cross multiply
    55,655.20x = 83,482.80 × 14,102.20
  4. Step 4: Simplify right side
    55,655.20x = 1,177,291,142.16
  5. Step 5: Solve for x
    x = 1,177,291,142.16/55,655.20
  6. Step 6: Final answer
    x = 21,153.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.